National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Jacksonville Naval Air Station (KNIP)

Lat: 30.23°NLon: 81.67°WElev: 10ft.

Mostly Cloudy

78°F

26°C

Humidity 82%
Wind Speed SW 8 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Aug 9:53 pm EDT
Extended Forecast for

6 Miles NE St Johns FL

Heat Advisory August 19, 11:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 80. West wind around 9 mph.

    Low: 80 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 111. West wind around 7 mph.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 78. West wind 5 to 8 mph.

    Low: 78 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely after 2pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 113. Light and variable wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%.

    High: 98 °F

    Sunny then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 77. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 80. West wind around 9 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 111. West wind around 7 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 78. West wind 5 to 8 mph.
Thursday
Showers and thunderstorms likely after 2pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 113. Light and variable wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 77. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 77.
Sunday
A 40 percent chance of showers and thunderstorms after 8am. Partly sunny and hot, with a high near 95.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NE St Johns FL
 30.15°N 81.51°W
Last Update:
7:21 pm EDT Aug 18, 2026
Forecast Valid:
10pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation